Search International and National Patent Collections

1. (WO2018130151) PHYSICAL DOWNLINK CONTROL CHANNEL DESIGN FOR 5G NEW RADIO

Pub. No.:    WO/2018/130151    International Application No.:    PCT/CN2018/072038
Publication Date: Fri Jul 20 01:59:59 CEST 2018 International Filing Date: Thu Jan 11 00:59:59 CET 2018
IPC: H04W 72/00
H04L 1/00
Applicants: MEDIATEK INC.
Inventors: HWANG, Chien-Hwa
YANG, Weidong
LIAO, Pei-Kai
WU, Wei-De
Title: PHYSICAL DOWNLINK CONTROL CHANNEL DESIGN FOR 5G NEW RADIO
Abstract:
A method to improve the design of new radio physical downlink control channel (NR-PDCCH) transmission and to reduce the false alarm rate of NR-PDCCH blind decoding is proposed. The downlink control information (DCI) bits are carried by NR-PDCCH to be transmitted to UEs after CRC attachment, channel encoding, interleaving, and modulation. The proposed NR-PDCCH design is separated into two parts. In a first part, a UE-ID or RNTI is used to derive a CRC mask or a scrambling sequence for CRC attachment of the DCI bits. In a second part, a UE-specific ID is used to derive an interleaver before or after channel encoding of the DCI bits. If the interleaver is placed before channel encoding, it takes the form of a bit interleaver. If the interleaver is placed after channel encoding, it takes the form of a bit interleaver or a channel interleaver.